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UPSTREAM: scsi: ufs: mcq: Use active_reqs to check busy in clock scaling

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Multi Circular Queue doesn't use outstanding_reqs. However, the UFS clock
scaling functions use outstanding_reqs to determine if there are requests
pending. When MCQ is enabled, this check always returns false.

Hence use active_reqs to check if there are pending requests.

Bug: 254441685
Fixes: eacb139b77 ("scsi: ufs: core: mcq: Enable multi-circular queue")
Signed-off-by: Asutosh Das <quic_asutoshd@quicinc.com>
Reviewed-by: Manivannan Sadhasivam <mani@kernel.org>
Link: https://lore.kernel.org/r/a24e0d646aac70eae0fc5e05fac0c58bb7e6e680.1678317160.git.quic_asutoshd@quicinc.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
(cherry picked from commit c6001025d5)
Signed-off-by: Lee Jones <joneslee@google.com>
Change-Id: I5b5b5ab61971c60980ed66d05b026fad7100fade
This commit is contained in:
Asutosh Das
2023-03-08 15:13:23 -08:00
committed by Lee Jones
parent 9d0d5eacda
commit 9e7678cc60
1 changed files with 2 additions and 2 deletions
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4
drivers/ufs/core/ufshcd.c
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@@ -1512,7 +1512,7 @@ start_window:
scaling->window_start_t = curr_t;
scaling->tot_busy_t = 0;
if (hba->outstanding_reqs) {
if (scaling->active_reqs) {
scaling->busy_start_t = curr_t;
scaling->is_busy_started = true;
} else {
@@ -2135,7 +2135,7 @@ static void ufshcd_clk_scaling_update_busy(struct ufs_hba *hba)
spin_lock_irqsave(hba->host->host_lock, flags);
hba->clk_scaling.active_reqs--;
if (!hba->outstanding_reqs && scaling->is_busy_started) {
if (!scaling->active_reqs && scaling->is_busy_started) {
scaling->tot_busy_t += ktime_to_us(ktime_sub(ktime_get(),
scaling->busy_start_t));
scaling->busy_start_t = 0;